Generally, the electric hoist with high lifting capacity will be used with double beam overhead crane or gantry crane, but recently we completed an order for special electric hoist from the Filipina. In this case, the customer did not use double beam overhead crane or gantry crane, but used double truss beam to lift heavy objects. In order to solve this problem, our sales manager had an in-depth discussion with our customers
This case is from a Philippine client, M&J Fabrication & Installation company, which is one of Dongqi’ regular clients This time they need Dongqi to provide a material handling solution to their boiler project in Philippines. The Philippine client wants to lift a boiler steam drum from ground to the ceiling beam, which is a double truss beams. And the distance between truss beam is only 5m width. Client wants the lift height to be 30m, the drum weight be about 50ton, length be around 14m and however the lifting drum needs not to move too much.
Boiler steam drum lifting solution diagram
In order to lift the drum stably, the ideal idea is to overlap two H-beam on both sides of the truss beams, with two electric hoists hanging under two H-beams. The lifting hook together with the lifting belt takes drum bottom and lifts it up. During the whole lifting process, the H-beam is very important to support the hoist and load weight.
Design drawing of truss beam
Dongqi engineer calculated and adpoted the H-beam: H800xW300mm, considering the bearing, bottom plate is 40mm thickness, much thicker than the top plate 26mm.
H-beam design drawing
Dongqi settles down to use two 45T electric hoists to lift the drum. Two 30T hoists are enough on theory, but considering safety, client prefers to use two 45T electric hoists. The electric hoist drawing is like this:
Electric hoist drawing for Dongqi’ client
The hoist length is more than 4m, the H beam is only 5m, so it moves a very little space. , which is suitable for required working condition. The finished product seems very big, everything is big, wire drum, hook, pulley, motors.
Electric hoist in Chinese factories
In order to protect the electric hoists from damage, plywood boxed is used. This two electric hoists are packed into 4 boxes totally, and shipped by one 20’GP container.
The Philippines client is one of Dongqi’ regular clients. We are so honored to get the trusty of client from the successful cooperation experience. Facing the special lifting problem, the client once again chooses Dongqi to find the professional solutions. Although the highest lifting capacity of Dongqi’ biggest hoist can reach to 50T, but no client has ever ordered an electric hoist with the lifting capacity more than 35T, this case is 45Ton hoist, lifting height high up to 30m, and hanging on fixed beams, not moving like regular crane, very special. The lifting conditions and requirement is special and new, but it is not difficult for Dongqi, the material handling expert in China.
The Philippines client is one of Dongqi’ regular clients. We are so honored to get the trusty of client from the successful cooperation experience. Facing the special lifting problem, the client once again chooses Dongqi to find the professional solutions. Although the highest lifting capacity of Dongqi’ biggest hoist can reach to 50T, but no client has ever ordered an electric hoist with the lifting capacity more than 35T, this case is 45Ton hoist, lifting height high up to 30m, and hanging on fixed beams, not moving like regular crane, very special. The lifting conditions and requirement is special and new, but it is not difficult for Dongqi, the material handling expert in China.
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